Mexican Regulators Slash América Móvil's Interconnection Rates

Competitors to Carlos Slim's Telecom Company Will Be Able to Charge More for Completing Calls

By

Anthony Harrup

March 31, 2014 9:54 p.m. ET

MEXICO CITY—Mexican tycoon Carlos Slim's telecommunications company América Móvil was ordered by a new powerful regulator to "substantially" cut some of its tariffs, the latest evidence that new telecom rules will trim the company's profit margins in its top market, Mexico.

América Móvil was forced to cut the rates it charges to complete calls from competing networks for the period from April through December, the company said in a statement to the Mexican Stock Exchange. América Móvil said that starting April 6,...